00:00Hi, Detectives! Hope you're doing well and are ready to take on some tricky jobs.
00:05Drink that cup of coffee to wake your brain up, and let's begin!
00:12Look at this diver. He managed to descend to the very bottom of the ocean without any diving gear.
00:18Surprisingly, he stayed submerged for hours and didn't even need to come up for air.
00:23How is this possible?
00:30He didn't need any diving suit or gear because he was in a submarine.
00:44Now, there are five apples. They're green and red.
00:48Of any two apples, at least one is red.
00:51How many green apples are there?
01:00There's only one green apple.
01:04As you see, in any pair of apples, one or both fruits are red.
01:08It means there can be no pair where both apples are green.
01:12Which, in turn, means there can't be more than one green apple.
01:16Otherwise, they would make a pair.
01:18Look at these people. Each of them seems to have some health problems.
01:26But in reality, one of them is just pretending.
01:29Who is it?
01:38It's Rick.
01:39If you look attentively, you'll notice that his phone is in his right pocket.
01:44He must have used his broken arm to put it there.
01:48You've got a lock with a special code consisting of three digits.
01:54Each digit can be any number from one to nine.
01:57To open the lock, you need to figure out the secret code.
02:01Let me help you and give you some clues.
02:03Before the first number, I say higher.
02:06Before the second number, I say lower.
02:09And before the last number, I say correct.
02:12Can you guess the code?
02:18The code is actually the number of letters in the words higher, lower, and correct.
02:28Six, five, and seven, respectively.
02:36There's an invisible wall in front of you.
02:38How can you figure out where exactly it is without touching it?
02:50You need to throw something at it.
02:52For example, a ball.
02:54Wherever it stops midair is where the invisible wall is.
02:57Can you name an English word that becomes shorter when you add two letters to it?
03:05Three brothers won two scooters that had the same price in a lottery.
03:25To divide their winnings equally, the oldest and the middle brother each took a scooter.
03:29And then, each of them gave 350 coins to the youngest brother.
03:35How many coins is one scooter worth?
03:47It costs 1,050 coins.
03:50You see, the younger brother got this sum of money.
03:53This is a third of the cost of the two scooters.
03:55It means that two scooters are worth 2,100 coins.
03:59This way, one scooter costs 1,050 coins.
04:08Can you think of something so fragile that even speaking its name can break it?
04:21It's silence.
04:22Kate lives on the fourth floor, and Alex lives on the second floor.
04:30When she goes up to the fourth floor, Kate climbs 60 stairs.
04:35How many stairs does Alex have to climb to get to the second floor?
04:38Your first answer might be that Alex needs to climb 30 stairs.
04:52It's half as many as Kate has to take because she lives on the floor twice as high.
04:57But this is not the case.
04:58When Kate goes up to the fourth floor, she climbs six flights of stairs.
05:03So, there are 20 stairs between two floors.
05:07It means that when Alex goes from the first floor to the second floor, he climbs 20 stairs.
05:13A parrot has lived less than 100 years and can only answer yes and no questions.
05:23How many questions do you have to ask it to find out its age?
05:26At first glance, it may seem that a parrot can be asked up to 99 questions.
05:42But you can actually figure out the answer with a much smaller number of questions.
05:46First, ask the bird,
05:48Are you over 50 years old?
05:50If he answers yes, its age is from 51 to 99.
05:55If it answers no, its age is from 1 to 50.
05:58The number of options is half after the first question.
06:01The next question you can ask is,
06:03Are you more or less than 25 years old?
06:07Or it can be,
06:08Are you more or less than 75 years old?
06:11Depending on the answer to the first question.
06:13These following questions reduce the number of options by four times.
06:17In the end, the parrot only needs to be asked seven questions.
06:25The pencil was placed on the floor and several people were asked to jump over it.
06:30But no one managed to do it.
06:32Why?
06:42The pencil was put near the wall.
06:47George Washington,
06:50Sherlock Holmes,
06:51William Shakespeare,
06:52Ludwig van Beethoven,
06:53and Napoleon Bonaparte.
06:55Which of these famous characters is fundamentally different?
07:07Sherlock Holmes,
07:09because he's a fictional character,
07:11while the rest were real historical figures.
07:13Imagine a five-mile-long bridge that can hold exactly 25 tons.
07:25A fully equipped truck, including the driver,
07:28weighs 25 tons.
07:31It starts driving over the bridge.
07:34In the middle of the bridge,
07:35a small sparrow lands on the truck.
07:37The truck has used some fuel to get to the center of the bridge.
07:56Anna majored in accounting at university.
08:05Her roommates wanted to test her intelligence.
08:08They took three envelopes and wrote some messages on them.
08:11Then, they put the answers to Anna's exam questions in one of the envelopes.
08:16Only one envelope had a truthful message written on it.
08:19The other two were false.
08:21Anna wasn't allowed to open the envelopes and could only pick one.
08:24The first message read,
08:27There are no exam answers here.
08:29The second said,
08:30The exam answers are here.
08:32And the third message read,
08:34The exam answers aren't in the second envelope.
08:37Which envelope should Anna pick?
08:48The third one.
08:49It tells the truth,
08:51which means the exam answers are in the first envelope.
08:54A businessman was about to go through a security check at the airport
09:02when he realized someone had taken his luggage.
09:05The airport police had three suspects.
09:08Lisa said,
09:09I wouldn't take someone's old brown bag.
09:11I have my own.
09:12Bright, pink, and pretty.
09:15Mike explained he was a light traveler and didn't have any luggage.
09:18He put everything in his backpack.
09:20Rob had a broken arm and a sprained ankle.
09:22He could hardly carry anything.
09:25The police immediately knew who had done it.
09:28Can you figure it out?
09:38It was Lisa.
09:39Oh no!
09:40Nobody told her the luggage was brown.
09:42Then, how did she figure it out?
09:44When several friends decided to play cards,
09:51they noticed that a few cards had been lost.
09:53They also realized that if they dealt the rest of the cards among four people,
09:57three cards would remain.
09:59If they dealt these cards between three people,
10:02two cards would remain.
10:03And if they distributed the cards among five people,
10:06again,
10:07two cards would remain.
10:08How many cards were left in the pack?
10:20There were 47 cards left in the pack.
10:22Let's see.
10:23If 47 is divided by four,
10:25three is left out.
10:26And if 47 is divided by either three or five,
10:30two is left out.
10:35Mrs. Kim called the school principal
10:37to report that someone had taken her students' tests.
10:41She added that she had noticed a stranger wearing school clothes,
10:44gloves,
10:45and a red mask walking school hallways.
10:48This person also had three star tattoos on their fingers.
10:51The principal didn't believe the teacher.
10:54Why?
11:04She said the person had been wearing gloves.
11:06But then,
11:07how did she see three star tattoos on the intruder's fingers?
11:10She must have lost the test herself
11:13and was trying to find an excuse.
11:19You need to get a taxi.
11:21Oh,
11:22how lucky.
11:22There are not one but three cars over there.
11:26But which car should you choose?
11:37The first taxi doesn't have a license plate.
11:39That's suspicious.
11:41And the driver of the second taxi
11:42is covering their face with a mask.
11:44That's creepy.
11:46You should choose the third taxi.
11:51There are not.
11:55You should buy that car,
11:56and you should choose the third taxi.
11:56You should force yourself back to your car.
11:56You should go with the superior property.
11:56You should be Jesus.
11:58Liebe insurance,
11:58and that's very close to someone,
11:59especially if you decide to pay your car.
12:00That's if you decide to have close the debt with a financial aid a rebiduer.
12:01That's what you might expect.
12:02You're unhappy in a...
12:04If you do not know anything,
12:04you'll never have to pay your car to your date.
12:05You should close the door.
12:05It's only a little bit more.
12:08There being a little bit.
12:10I'll do a troisième house over there.
12:10Littleinguémagrade of the door,
12:12any other family actually can be aная mentality.
12:14You need to figure out of a teenageface school game,
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